Pachycephalosaurus from the late cretaceous period in North America in what is these days known as Montana. Pachycephalosaurus was a herbivorous creature that is only known by a few fossilized thick skull bones and 1 skull. It is famous for having a large bony dome shaped skull, which was edged with bony knobs and short bone spikes. These characteristics suggest that it was a relative of the ceratopsians.
It is thought pachycephalosaurus had a short thick neck, and its large eye-sockets that faced forward suggest that the animal had good vision and was capable of binocular vision.
Late Cretaceous 68 to 67 million years ago
13cm long x 6cm high